
<h1><span class="yiyi-st" id="yiyi-13">numpy.ma.MaskedArray.set_fill_value</span></h1>
        <blockquote>
        <p>原文：<a href="https://docs.scipy.org/doc/numpy/reference/generated/numpy.ma.MaskedArray.set_fill_value.html">https://docs.scipy.org/doc/numpy/reference/generated/numpy.ma.MaskedArray.set_fill_value.html</a></p>
        <p>译者：<a href="https://github.com/wizardforcel">飞龙</a> <a href="http://usyiyi.cn/">UsyiyiCN</a></p>
        <p>校对：（虚位以待）</p>
        </blockquote>
    
<dl class="method">
<dt id="numpy.ma.MaskedArray.set_fill_value"><span class="yiyi-st" id="yiyi-14"> <code class="descclassname">MaskedArray.</code><code class="descname">set_fill_value</code><span class="sig-paren">(</span><em>value=None</em><span class="sig-paren">)</span><a class="reference external" href="http://github.com/numpy/numpy/blob/v1.11.3/numpy/ma/core.py#L3578-L3615"><span class="viewcode-link">[source]</span></a></span></dt>
<dd><p><span class="yiyi-st" id="yiyi-15">设置掩码数组的填充值。</span></p>
<table class="docutils field-list" frame="void" rules="none">
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<tr class="field-odd field"><th class="field-name"><span class="yiyi-st" id="yiyi-16">参数：</span></th><td class="field-body"><p class="first"><span class="yiyi-st" id="yiyi-17"><strong>value</strong>：标量，可选</span></p>
<blockquote class="last">
<div><p><span class="yiyi-st" id="yiyi-18">新的填充值。</span><span class="yiyi-st" id="yiyi-19">默认值为None，在这种情况下，将使用基于数据类型的默认值。</span></p>
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<div class="admonition seealso">
<p class="first admonition-title"><span class="yiyi-st" id="yiyi-20">也可以看看</span></p>
<dl class="last docutils">
<dt><span class="yiyi-st" id="yiyi-21"><code class="xref py py-obj docutils literal"><span class="pre">ma.set_fill_value</span></code></span></dt>
<dd><span class="yiyi-st" id="yiyi-22">等效功能。</span></dd>
</dl>
</div>
<p class="rubric"><span class="yiyi-st" id="yiyi-23">例子</span></p>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="n">x</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">ma</span><span class="o">.</span><span class="n">array</span><span class="p">([</span><span class="mi">0</span><span class="p">,</span> <span class="mf">1.</span><span class="p">],</span> <span class="n">fill_value</span><span class="o">=-</span><span class="n">np</span><span class="o">.</span><span class="n">inf</span><span class="p">)</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">x</span><span class="o">.</span><span class="n">fill_value</span>
<span class="go">-inf</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">x</span><span class="o">.</span><span class="n">set_fill_value</span><span class="p">(</span><span class="n">np</span><span class="o">.</span><span class="n">pi</span><span class="p">)</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">x</span><span class="o">.</span><span class="n">fill_value</span>
<span class="go">3.1415926535897931</span>
</pre></div>
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<p><span class="yiyi-st" id="yiyi-24">重置为默认：</span></p>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="n">x</span><span class="o">.</span><span class="n">set_fill_value</span><span class="p">()</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">x</span><span class="o">.</span><span class="n">fill_value</span>
<span class="go">1e+20</span>
</pre></div>
</div>
</dd></dl>
